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February 10, 2010

Comments

Gary

This works best if you can get access to the back side of an "open" potentiometer, which is the kind used on most vintage equipment. Most new equipment has "sealed" potentiometers, which makes it much more difficult to get the DeoxIT where it needs to go.

Andreas

Do you as well have a recommendation to make a stuck variable capacitor move again? I've picked up a Schaub Lorenz Intercontinental some time ago. Nice machine, and I could bring back life into it. But the capacitor was stuff. Cleaned it several times with some "run of the mill" cleaning spray and it was o.k. for a day or two - but then *grrrrr* again...

Some experts say you can "cook" a stiff capacitor in soap sud ;) But to demount it from the chassis (and mount it again after cooking) - that sounds like a last-ditch attempt to me. Schaub Lorenz engineers had some strange ideas to build up this radio back in the 60s. And I'm not that hard boiled...

Ed

It's risky, but a quick shot of WD-40 in the cap's shaft bearings may help. Don't saturate the plates if it's a sealed cap..

Andreas

WD-40 is in my toolbox here. I'll give it a try 'cause I have nothing to lose! Thanks.

Angelo

E-Bay 130364274224

This looks like something from the set of "Lost In Space." I think something weird happened with the auction though----I could have sworn there was more time and went I went to check on it, it was ended. Maybe they will re-list.

Ed

Angelo, that radio looks like something out of Vegas--I was looking for the One-Armed Bandit's lever that you pull...

Angelo

Ed: Yes, I thought of the Vegas reference too---lights and action.
I was inclined to snag it if no one else bid---but I think he ended the auction early.

Huesby

Nice and rare Radio
Item number: 140373824900

Randy

NO! to wd 40, no to anything but the DeOxit product on your special radios. Seriously....

Randy

...mind you, don't throw out the WD 40. It's great for lots of other things...

Keith

I have a solution for Gary with the Schaub Lorenz Intercontinental. This works for any German/Austrian radio with a similar gray painted variable air-cap. It is necessary to gain access to the area where the cap's shaft goes through its front surface and bearing to the plates.

Careful inspection of this area will reveal that there is a cir-clip which holds the shaft in place. Remove the cir-clip and spray chemical down the shaft. Turn the shaft. Additionally, gently pull the shaft in and out just a bit. This will loosen the old grease which has hardened.

I use a cleaner first that leaves no residue. Then once the shaft is turning freely, I use a light oil. Sometimes it is necessary to repeat the procedure several times to totally free the bearing. Don't forget to replace the cir-clip when you are done.

These are excellent radios and it would be a shame to see one trashed simply for the lack of a bit of oil. Requires quite a bit of dis-assembly but the results are well worth it. It is not necessary to remove the tuner from the chassis, but it is necessary to remove the chassis from the cabinet.

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